如何从自动完成的TextView android的文本 [英] how to get text from autocomplete textview android

问题描述

我在我的应用程序，它的工作原理是AutoCompleteTextView。我已经成功地创建了一个onClickItemListener。现在的问题是如何抓住用户选择的文本。这是事情：我有话要传递到适配器搜索建议一个ArrayList。当用户键入一个单词的建议列表变短（行在UI端），所以，当我想从ArrayList中的单词索引的用户选择，我得到了错误的字，因为索引不匹配。我怎样才能获取文本（字符串）用户选择，而不必惹指数？这是我的code：

 公共类AutocompleteActivity扩展BaseActivity {

    私人DBManager m_db;

    @覆盖
    公共无效的onCreate（包savedInstanceState）{
        super.onCreate（savedInstanceState）;
        的setContentView（R.layout.autocomplete）;

        m_db =新DBManager（本）;
        最后的ArrayList＆LT;字符串＆GT;也就是说= m_db.selectAllWords（）;
        ArrayAdapter＆LT;字符串＆GT;适配器=新的ArrayAdapter＆LT;字符串＆GT;（这一点，R.layout.listitem，字）;

        AutoCompleteTextView电视=（AutoCompleteTextView）findViewById（R.id.autocomplete）;
        tv.setThreshold（1）;
        tv.setAdapter（适配器）;

        tv.setOnItemClickListener（新OnItemClickListener（）{

            公共无效onItemClick（适配器视图＆LT;＆GT;为arg0，查看ARG1，INT ARG2，长ARG3）{
                Log.i（所选文字WAS -------＆gt;中，words.get（ARG2））;
            }
        }）;
    }
}
 

解决方案

为arg0 为你的适配器视图和 ARG2 的位置。

您是否尝试过：

  arg0.getItemAtPosition（ARG2）;
 

i have an AutoCompleteTextView in my app which works. I have successfully created an onClickItemListener. The question is how to grab the text the user selected. And this is the thing: i have an ArrayList with words being passed to the Adapter to search for suggestions. As the user types a word the suggestions list gets shorter (in rows on the UI side) so when i want to get the word from the ArrayList at the index the user selected i get the wrong word because the indexes doesn't match. How can i get the text (String) the user chose without having to mess with the index? Here's my code:

public class AutocompleteActivity extends BaseActivity {

    private DBManager m_db;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.autocomplete);

        m_db = new DBManager(this);
        final ArrayList<String> words = m_db.selectAllWords();
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.listitem, words);

        AutoCompleteTextView tv = (AutoCompleteTextView)findViewById(R.id.autocomplete);
        tv.setThreshold(1);
        tv.setAdapter(adapter);

        tv.setOnItemClickListener(new OnItemClickListener() {

            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
                Log.i("SELECTED TEXT WAS------->", words.get(arg2));
            }
        });
    }
}

解决方案

arg0 being your AdapterView and arg2 the position.

Have you tried:

arg0.getItemAtPosition(arg2);

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